CN107693171A - Thoracolumbar disk Invasive lumbar fusion device - Google Patents

Thoracolumbar disk Invasive lumbar fusion device Download PDF

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Publication number
CN107693171A
CN107693171A CN201710987088.4A CN201710987088A CN107693171A CN 107693171 A CN107693171 A CN 107693171A CN 201710987088 A CN201710987088 A CN 201710987088A CN 107693171 A CN107693171 A CN 107693171A
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CN
China
Prior art keywords
fusion device
wall
device body
hole
invasive lumbar
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Pending
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CN201710987088.4A
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Chinese (zh)
Inventor
胡晓文
吴忆峰
韦冬
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Changzhou Waston Medical Appliance Co Ltd
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Changzhou Waston Medical Appliance Co Ltd
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Priority to CN201710987088.4A priority Critical patent/CN107693171A/en
Publication of CN107693171A publication Critical patent/CN107693171A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2/30942Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00Products made by additive manufacturing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772Apertures or holes, e.g. of circular cross section
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2002/30985Designing or manufacturing processes using three dimensional printing [3DP]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00023Titanium or titanium-based alloys, e.g. Ti-Ni alloys

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a kind of Thoracolumbar disk Invasive lumbar fusion device, the Invasive lumbar fusion device be by 3D printer by the structural member of titanium alloy material one printing shaping, by up/down perforation fusion device body and be fused device body and surround formed bone graft area and form;It is intensive in up and down and back and forth direction in the annular wall of fusion device body to be provided with through hole;Flank of tooth grooving is also preferably equipped with the annular wall of fusion device body;The left wall of fusion device body is preferably provided with slot device and instrument hole, and the inner surface of right wall is preferably provided with blind hole.Thoracolumbar disk Invasive lumbar fusion device intensity provided by the invention is higher, and the porosity of fusion device body reaches 50% to 80%, is advantageous to bone tissue growth, disclosure satisfy that the demand of fusion between Thoracolumbar disk.

Description

Thoracolumbar disk Invasive lumbar fusion device
Technical field
The present invention relates to the implant for vertebrae, belongs to fixed network in intervertebral fusion, and in particular to a kind of chest waist Vertebra fusion device.
Background technology
With the aging of China human mortality, the incidence of degenerative diseases of lumbar vertebrae and other lesions is gradually increasing, because of regression Cause lumber spondylolisthesis or shakiness and other disc diseases, it is necessary to carry out interbody fusion.
Chinese patent literature CN204581605U(Application number 201520265012.7)A kind of Invasive lumbar fusion device is disclosed, is wrapped The fusion device body of approximate cuboid is included, the bone grafting hole penetrated vertically is provided with the fusion device body, fusion device body Upper and lower surface is evenly arranged with teeth.The front end face of fusion device body is gradually slipped over to contract by rounding marginal ray Cross, the rear end face of fusion device body is provided with implantation positioning hole and implantation locating slot.Two side hollow outs of fusion device body run through, Hollow part is provided with growth net.Wherein titanium alloy growth net plays skeletal support effect, substantially increases tangential stress-bearing capability.Separately Outside, the teeth of the fusion device upper and lower surface are arranged to the key groove being engaged with human vertebra flexibility, improve fusion device peace The steadiness and axially loaded ability of dress so that the use that the fusion device can be steady in a long-term, and reduce foreign body sensation, it is ensured that The surgical quality of interbody fusion.Invasive lumbar fusion device bulk material disclosed in the utility model is polyether-ether-ketone PEEK, only its Growth net is titanium alloy reticulated.Also the skeletal support of fusion device is mentioned in the document needs the support of titanium alloy growth net, in fact The modulus of elasticity of polyether-ether-ketone PEEK materials is much smaller than titanium alloy material, i.e., integrally-built stability can be caused to protect Card, while the growth net of hollow out is only provided with the both sides being oppositely arranged, it is unfavorable for the needs for meeting the open growth of sclerotin.
The content of the invention
It is an object of the invention to solve the above problems, there is provided a kind of intensity for Thoracolumbar disk intervertebral is preferably and after surgery To the preferable Thoracolumbar disk Invasive lumbar fusion device of growth result of sclerotin etc..
The technical solution adopted for the present invention to solve the technical problems is:The Thoracolumbar disk Invasive lumbar fusion device of the present embodiment is logical 3D printer is crossed by the structural member of titanium alloy material one printing shaping.The Invasive lumbar fusion device by up/down perforation fusion device body And be fused device body surround formed oval Column bones of grafting district's groups into.Fusion device body is by the different annular wall of wall thickness Form.Shape likeness in form kidney ellipsoid is enclosed in the periphery of fusion device body, and the porosity of fusion device body reaches 50% to 80%.Melt The annular wall of clutch body includes antetheca, left wall, rear wall and the right wall being sequentially connected, and right wall is connected with antetheca again, wherein, antetheca It is identical with the wall wide of rear wall, it is H1;Left wall is identical with the wall wide of right wall, is H3, and H3 is more than H1.Outside fusion device body Surface is divided into bone graft area surface and non-bone graft area surface, and non-bone graft area surface can be divided into upper surface, lower surface and a front and rear left side Right surrounded surface.The inner surface of fusion device body is by the respective inner surface of antetheca, left wall, rear wall and right wall successively phase Connect and the inner surface of right wall is connected and formed with antetheca inner surface.The inner surface of fusion device body is bone graft area surface.
In the annular wall of described fusion device body intensive setting through hole to be front and rear to through hole and upward and downward through hole;Institute The upward and downward through hole stated is arranged in the annular wall of fusion device body along the vertical direction, and all upward and downward through holes are uniformly distributed, The upper port of each upward and downward through hole is set on an upper, and the lower port of each upward and downward through hole is set on the lower surface;Described It is front and rear to be arranged on antetheca and be arranged on rear wall along the longitudinal direction to through hole.
The fixing tooth of multiple anti-backs is each respectively equipped with the upper and lower surface of described fusion device body.
The annular wall of described fusion device body is provided with several flank of tooth groovings, is symmetric in the lower surface of annular wall With on upper surface;On the lower surface of non-bone graft area, two flank of tooth groovings are provided with along the longitudinal direction, and be located at and close on left wall On lower surface;Three flank of tooth groovings are additionally provided with the lower surface of non-bone graft area in left-right direction, two of which is located at faces respectively Nearby it is parallel to each other on the lower surface of wall and rear wall, also one positioned at closing on the lower surface of right wall and be set in parallel in addition Two flank of tooth groovings;In addition, it is arranged with corresponding two sagittal teeth relative to lower surface on the upper surface of non-bone graft area Face grooving and three or so to flank of tooth grooving.
The fusion device it is front and rear to wall wide be H1, width 4-6mm;It is front and rear to beam overall be H2, width 18-26mm;It is left Dextrad wall wide is H3, width 10-16mm;Left and right to beam overall be H4, width 80-120mm.
The left wall of described fusion device body is provided with two symmetrical slot devices, and the central part of two slot devices is also set There is an instrument hole, described instrument hole is the through hole of insertion left wall.
The inner surface of the right wall of the annular wall of described fusion device body is provided with two along the front and rear rectangle to setting Blind hole, be distributed according to above-below direction between two blind holes.
The good effect that the present invention has:(1)The fusion device body of Thoracolumbar disk Invasive lumbar fusion device provided by the invention has The physiologic radian profile matched is wanted between Thoracolumbar disk, the mechanical support at initial stage is implanted into for Thoracolumbar disk Invasive lumbar fusion device, is had excellent Different antifatigue mechanical property;And the phase coordinates the bone grafting of all directions set on fusion device body after the implantation for bone graft area Hole, the regeneration and reconstruction of sclerotin can be preferably completed, the life at Thoracolumbar disk position is cooperatively undertaken with fusion device body construction Manage load.(2)The porosity of the fusion device body of the Thoracolumbar disk Invasive lumbar fusion device of the present invention reaches 50% to 80%, and this to merge Device body has the presence that all directions have bone grafting hole, actually a fusion device inherently open space structure, tool There is the possibility that sclerotin can be allowed to extend on late growing stage to all directions, can preferably allow Thoracolumbar disk Invasive lumbar fusion device to melt Enter intervertebral.(3)The present invention Thoracolumbar disk Invasive lumbar fusion device fusion device body due to there is the presence that all directions have bone grafting hole, So that originally due to being that the integrally formed fusion device structure of titanium alloy has certain elasticity, script titanium alloy material bullet compensate for Property modulus too high the defects of bringing damage to sclerotin.(4)The fusion device body of the Thoracolumbar disk fusion device of the present invention is closing on the right side The fusion device of wall is internally provided with blind hole, and these blind holes are mainly used in after fusion device is attached in human body, with the life of sclerotin Long, part sclerotin can enter blind hole, be attached on fusion device, sclerotin be better achieved and is combined with fusion device.(5)The present invention's The annular wall of Thoracolumbar disk fusion device body is provided with several flank of tooth groovings, and such setting adds contact of the flank of tooth with spinal bone , prevent the loosening of fusion device and come off.
Brief description of the drawings
Fig. 1 is a kind of schematic perspective view of the Thoracolumbar disk Invasive lumbar fusion device of the present invention.
Fig. 2 is the schematic perspective view for obtaining Fig. 1 along after Plane Rotation 180 degree where drawing.
Fig. 3 is Fig. 1 schematic top plan view.
Fig. 4 is Fig. 1 front-view schematic diagram.
Fig. 5 is Fig. 1 left view schematic diagram.
Fig. 6 is along the schematic diagram after the A-A faces section view in Fig. 3, and the A-A faces in figure are vertical with paper.
Fig. 7 is that the solid for the T1-S1 intervertebrals that the Thoracolumbar disk Invasive lumbar fusion device shown in 2 Fig. 2 is placed on into human vertebra is shown It is intended to.
Reference in above-mentioned accompanying drawing is as follows:
Fusion device 1, upper surface 11, lower surface 12, antetheca 13, left wall 14, slot device 14-1, instrument hole 14-2, rear wall 15, right wall 16, oval Column bones of grafting area 17, bone grafting hole 18 is front and rear front and rear to wall to through hole 18-1, upward and downward through hole 18-2, fixing tooth 19 Wide H1, front and rear to overall length H2, left and right is to wall wide H3, and left and right is to overall length H4, flank of tooth grooving 20, blind hole 21.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings:Following examples using technical solution of the present invention as Under the premise of implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to Following embodiments.
(Embodiment 1)
See Fig. 1 to Fig. 3, the Thoracolumbar disk Invasive lumbar fusion device of the present embodiment is integrally to be printed as titanium alloy material by 3D printer The structural member of type.The Invasive lumbar fusion device by up/down perforation fusion device body 1 and be fused device body 1 and surround formed waist Cylindrical bone graft area 17 forms.Fusion device body 1 is made up of the different annular wall of wall thickness.Enclosed the periphery of fusion device body 1 Shape is similar to kidney ellipsoid, and the porosity of fusion device body 1 reaches 50% to 80%.The annular wall of fusion device body 1 include according to Secondary connected antetheca 13, left wall 14, rear wall 15 and right wall 16, right wall 16 are connected with antetheca 13 again, wherein, antetheca 13 and rear wall 15 Wall wide it is identical, be H1;Left wall 14 is identical with the wall wide of right wall 16, is H3, and H3 is more than H1.Outside fusion device body 1 Surface is divided into bone graft area surface and non-bone graft area surface, and non-bone graft area surface can be divided into upper surface 11, lower surface 12 and preceding The surrounded surface of left and right afterwards.The inner surface of fusion device body 1 is by the respective of antetheca 13, left wall 14, rear wall 15 and right wall 16 Inner surface is sequentially connected and the inner surface of right wall 16 is connected and formed with the inner surface of antetheca 13.Fusion device body 1 it is interior Surface is bone graft area surface.
The annular wall of fusion device body 1 is provided with the through hole of intensive setting, including front and rear leads to through hole 18-1 and upward and downward Hole 18-2;Wherein upward and downward through hole 18-2 is arranged in the annular wall of fusion device body 1 along the vertical direction, all upward and downward through holes 18-2 is uniformly distributed, and each upward and downward through hole 18-2 upper port is arranged on upper surface 11, each upward and downward through hole 18-2 lower end Mouth is arranged on lower surface 12;It is described front and rear to be arranged on along the longitudinal direction on antetheca 13 to through hole 18-1 and be arranged on rear wall 15 On.
As shown in figure 4, each it is respectively equipped with multiple anti-backs on the upper surface 11 and lower surface 12 of described fusion device body 1 Fixing tooth 19.
See Fig. 1 and Fig. 2, the annular wall of fusion device body 1 is provided with several flank of tooth groovings 20, is symmetric in annular wall Lower surface 12 and upper surface 11 on;On the lower surface 12 of non-bone graft area, two flank of tooth groovings 20 are provided with along the longitudinal direction, And it is located at and closes on the lower surface 12 of left wall 14;Three flank of tooth are additionally provided with the lower surface 12 of non-bone graft area in left-right direction to cut Groove 20, two of which is respectively positioned at closing on the lower surface 12 of antetheca 13 and rear wall 15 and be parallel to each other, and also one positioned at facing On the lower surface 12 of nearly right wall 16 and it is set in parallel in two other flank of tooth grooving 20.In addition, on the upper surface 11 of non-bone graft area Relative to lower surface 12 be arranged with corresponding two sagittal flank of tooth groovings 20 and three or so to flank of tooth grooving 20.Tooth The setting of face grooving 20 is mainly used for increasing the contact area of the flank of tooth and spinal bone, prevents the loosening of fusion device and comes off.
As shown in figure 3, fusion device in the present embodiment it is front and rear to wall wide H1 be 5mm, it is front and rear to overall length H2 be 22mm, left and right Be 12mm to wall wide H3, left and right to overall length H4 be 90mm.
As shown in figure 5, described left wall 14 is provided with two symmetrical slot device 14-1, the two slot devices 14-1 center It is the through hole of insertion left wall 14 that position, which is provided with instrument hole a 14-2, described instrument hole 14-2,.Such setting is for convenience Coordinate means of delivery that fusion device 1 is sent into intervertebral specified location.
As shown in fig. 6, two are provided with the inner surface of the right wall 16 of the annular wall of fusion device body 1 along front and rear to setting Rectangular blind hole 21, be distributed according to above-below direction between two blind holes 21.And the inner surface in left wall 14 is not set Such blind hole is put, left wall 14 is primarily due to and is already provided with corresponding slot device 14-1 and instrument hole 14-2, if including again If portion sets blind hole, integrally-built stability can be influenceed.After fusion device is attached in human body, with the growth of sclerotin, Part sclerotin enters blind hole 21, is attached on fusion device, the combination of sclerotin and fusion device is better achieved, also keeps away to a certain extent The defects of processing is exempted from.
Fig. 7 is the Thoracolumbar disk vertebra Invasive lumbar fusion device of the present embodiment in intervertebral(Between T1-S1)Assembling schematic diagram, fusion device number Measure as two, approaches are from upper segments through posterior-lateral approach.Reality first beats the remaining cartilage of intervertebral and broken bone in assembling process Mill suitably to the size of fusion device, then by remnants cartilage and broken bone load Thoracolumbar disk Invasive lumbar fusion device implantation region 17 and In bone grafting hole 18, Thoracolumbar disk Invasive lumbar fusion device is then delivered to specified location with delivery instrument.

Claims (7)

1. a kind of Thoracolumbar disk Invasive lumbar fusion device, for by 3D printer by the structural member of titanium alloy material one printing shaping, its It is characterised by:The Invasive lumbar fusion device by up/down perforation fusion device body(1)And it is fused device body(1)Surround what is formed Bone graft area(17)Composition, fusion device body(1)To enclose shape shape be in integrally kidney ellipsoid for periphery, and fusion device body(1)It is It is made up of the different annular wall of wall thickness, so that fusion device body(1)Cross section be the different annular of thickness;Fusion device sheet Body(1)Annular wall on intensive be provided with and the through hole that communicates of the external world, and fusion device body(1)Porosity reach 50% to 80%;
Described fusion device body(1)Annular wall include the antetheca that is sequentially connected(13), left wall(14), rear wall(15)And right wall (16), right wall(16)And and antetheca(13)It is connected;Wherein, antetheca(13)And rear wall(15)Wall wide it is identical, be H1;Left wall (14)And right wall(16)Wall wide it is identical, be H3, and H3 is more than H1;The outer surface of fusion device body 1 is divided into bone graft area table Face and non-bone graft area surface, non-bone graft area surface can be divided into upper surface(11), lower surface(12)And all around surrounding is outer Side surface, fusion device body(1)Inner surface be by antetheca(13), left wall(14), rear wall(15)And right wall(16)It is respective Inner surface is sequentially connected and right wall(16)Inner surface and antetheca(13)Inner surface is connected and formed;Fusion device body (1)Inner surface be bone graft area surface.
2. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1)Ring On shape wall intensive setting through hole to be front and rear to through hole(18-1)With upward and downward through hole(18-2);Described upward and downward through hole (18-2)Fusion device body is arranged on along the vertical direction(1)Annular wall on, and all upward and downward through holes(18-2)It is uniformly distributed, Each upward and downward through hole(18-2)Upper port be arranged on upper surface(11)On, each upward and downward through hole(18-2)Lower port be arranged on Lower surface(12)On;Described is front and rear to through hole(18-1)Antetheca is arranged on along the longitudinal direction(13)Go up and be arranged on rear wall(15) On.
3. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1)Before Backward wall wide is H1, width 4-6mm;It is front and rear to beam overall be H2, width 18-26mm;Left and right is H3 to wall wide, and width is 10-16mm;Left and right is H4 to beam overall, is 80-120mm.
4. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1)Ring Shape wall is provided with several flank of tooth groovings(20), it is symmetric in the lower surface of annular wall(12)With upper surface(11)On;Non- The lower surface of bone graft area(12)On, two flank of tooth groovings are provided with along the longitudinal direction(20), and be located at and close on left wall(14)Under Surface(12)On;And in the lower surface of non-bone graft area(12)On be additionally provided with three flank of tooth groovings in left-right direction(20), wherein Two respectively positioned at closing on antetheca(13)And rear wall(15)Lower surface(12)Upper and be parallel to each other, also one positioned at closing on the right side Wall(16)Lower surface on and be set in parallel in two other flank of tooth grooving(20);In addition, the upper surface of non-bone graft area(11)On Relative to lower surface(12)It is arranged with corresponding two sagittal flank of tooth groovings(20)With three or so to flank of tooth grooving (20).
5. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1)It is upper Surface(11)And lower surface(12)On be each respectively equipped with the fixing tooths of multiple anti-backs(19).
6. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1) Left wall(14)Provided with two symmetrical slot devices(14-1), two slot devices(14-1)Central part be additionally provided with an instrument hole (14-2), described instrument hole(14-2)To penetrate left wall(14)Through hole.
7. Thoracolumbar disk Invasive lumbar fusion device according to claim 1, it is characterised in that:Described fusion device body(1)The right side Wall(16)It is provided with two rectangular blind holes(21), right wall is distributed in above-below direction(16)Inner surface.
CN201710987088.4A 2017-10-20 2017-10-20 Thoracolumbar disk Invasive lumbar fusion device Pending CN107693171A (en)

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Application Number Priority Date Filing Date Title
CN201710987088.4A CN107693171A (en) 2017-10-20 2017-10-20 Thoracolumbar disk Invasive lumbar fusion device

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CN111568610A (en) * 2020-05-29 2020-08-25 四川大学华西医院 Lateral front approach cervical interbody fusion cage and matched bone grafting tool
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CN111568610B (en) * 2020-05-29 2022-12-27 四川大学华西医院 Lateral front approach cervical interbody fusion cage and matched bone grafting tool

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